References during my employment time at ABB may have changed today their position. Nevertheless I would provide references from that time on request. For references concerning my activities for UN organizations you may contact: UNDP: Alejandro Ramirez-Pabon (NY), Anil Sookdeo (Bangkok) UNEP: Dr. David Piper and Jorge Ocana (both in Geneve) UNIDO: Valentin Ishchenko (Vienna) Secretariat of Stockholm Convention: Paul Whylie (Geneve)